include/asm-arm/plat-s3c24xx/pm.h

   1 /* linux/include/asm-arm/plat-s3c24xx/pm.h
   2  *
   3  * Copyright (c) 2004 Simtec Electronics
   4  *      Written by Ben Dooks, <ben@simtec.co.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9 */
  10
  11 /* s3c2410_pm_init
  12  *
  13  * called from board at initialisation time to setup the power
  14  * management
  15 */
  16
  17 #ifdef CONFIG_PM
  18
  19 extern __init int s3c2410_pm_init(void);
  20
  21 #else
  22
  23 static inline int s3c2410_pm_init(void)
  24 {
  25         return 0;
  26 }
  27 #endif
  28
  29 /* configuration for the IRQ mask over sleep */
  30 extern unsigned long s3c_irqwake_intmask;
  31 extern unsigned long s3c_irqwake_eintmask;
  32
  33 /* IRQ masks for IRQs allowed to go to sleep (see irq.c) */
  34 extern unsigned long s3c_irqwake_intallow;
  35 extern unsigned long s3c_irqwake_eintallow;
  36
  37 /* per-cpu sleep functions */
  38
  39 extern void (*pm_cpu_prep)(void);
  40 extern void (*pm_cpu_sleep)(void);
  41
  42 /* Flags for PM Control */
  43
  44 extern unsigned long s3c_pm_flags;
  45
  46 /* from sleep.S */
  47
  48 extern int  s3c2410_cpu_save(unsigned long *saveblk);
  49 extern void s3c2410_cpu_suspend(void);
  50 extern void s3c2410_cpu_resume(void);
  51
  52 extern unsigned long s3c2410_sleep_save_phys;
  53
  54 /* sleep save info */
  55
  56 struct sleep_save {
  57         void __iomem    *reg;
  58         unsigned long   val;
  59 };
  60
  61 #define SAVE_ITEM(x) \
  62         { .reg = (x) }
  63
  64 extern void s3c2410_pm_do_save(struct sleep_save *ptr, int count);
  65 extern void s3c2410_pm_do_restore(struct sleep_save *ptr, int count);
  66
  67 #ifdef CONFIG_PM
  68 extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state);
  69 extern int s3c24xx_irq_resume(struct sys_device *dev);
  70 #else
  71 #define s3c24xx_irq_suspend NULL
  72 #define s3c24xx_irq_resume  NULL
  73 #endif